Fibrous cylindrical containers having reinforced end structures



0d 15, 1963 J. RoDlsl-l 3,107,037

FIBRous CYLINDRICAL CONTAINERS HAVING REINFORCED END STRUCTURES Filed Sept. 6, 1960 2 Sheets-Sheet 1 INVENTOR fahrt Rodz'slz,

ATTORNEY Oct. 15, 1963 J. RODISH FIBROUS CYLINDRICAL CONTAINERS HAVING REINFORCED END STRUCTURES Filed Sept. 6, 1960 2 Sheets-Sheet 2 Z5 i r 75 i; .si

INV EN TOR falaz ROdISh,

ATTORNEY United States Patent O 3,107 ,037 FIBROUS CYLINDRICAL CONTAINERS HAVING REINFORCED END STRUCTURES John Rodsh, Cincinnati, Ohio, assignor to The Mead Corporation, Dayton, Ohio, a corporation of Ohio Filed Sept. 6, 1960, Ser. No. 54,298 3 Claims. (Cl. L29-5.6)

This invention relates to fibrous cylindrical containers having metal reinforced end structures.

More particularly, the invention pertains to cylindrical containers of the drum type formed of fibrous sheet material wrapped upon itself to produce a laminated wall of desired thickness and strength and provided with bottoms formed of one or more plies of strong sheet material joined to the bottom end edge of the cylindrical wall by the use of a metallic reinforcing chime crimped over and around simultaneously formed undulations in the cylinder end.

The containers of this invention are further provided at their upper end with a similarly attached reinforcing chime terminating in an annular bead of nearly circular cross-section, and are also provided with a circular cover of sheet material having the edge thereof undulatingly crimped to produce -a `good sealing engagement with the upper and inner margins of the container top and a beadengaging action that will hold the cover on the container against moderate displacing forces (such as encountered during handling and rolling of empty containers), thus making unnecessary the use of a top-retaining clamp ring except for shipping of filled containers.

A principal object of this invention is to provide a fibrous cylindrical container having, vbetween its sheet material bottom and the lower end of the cylindrical Walls thereof, a joint of simple, economical and rugged construction, formed by ysimultaneously undulatingly crimping the mating edges thereof and a metal joint-reinforcing chime element slipped over said edges.

It is another object to provide a fibrous cylindrical container having a chime-reinforced upper rim terminating in an annular bead of nearly circular cross section and having a cover provided with a bead-gripping downwardly and inwardly turned rim flange connected to the periphery of the cover by a downwardly tapered `annular web designed to produce a substantially good `sealing engagement with the fibrous container walls, and also to leave a space -for insertion and protection against wear of a sealing medium if and as desired.

These and other objects and advantages of the invention will become apparent as the following detailed description proceeds.

In the drawings:

FIGURE 1 is a perspective view of the top of a container embodying the invention, the rim portion being greatly exaggerated for purpose of illustration;

FIGURE 2 is an enlarged fragmentary elevational view in section taken on line 2-2 of FIGURE l;

FIGURE 2A is a fragmentary elevational View similar to FIGURE 2 showing the parts 13 and 15 prior to their being crimped and bent into the nal shape shown in FIGURE 2;

FIGURE 3 is a fragmentary elevational view of the bottom portion of the container;

FIGURE 4 is an enlarged fragmentary elevational view of the disclosure of FIGURE 3 in section, taken on line 4-4 of FIGURE 3;

FIGURE 5 is a view similar to FIGURE 4 but showing the parts as assembled prior to the initiation of the crimping operation; and,

FIGURE 6 is a view similar to those of FIGURES 4 and 5 but showing an intermediate stage in the crimping operations.

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vWith reference to FIGURES l and 2 of the drawings,

the numeral 11 `generally designates the container as a whole. Container 11 is conventionally formed of paper or other sheet material wound upon itself to produce a cylinder 13 which constitutes the side walls of the container 11. The number of convolutions or laminae of the cylinder 13 is dictated by the strength and rigidity needed for the use to which Ithe container is to be put. The upper end of container 11 is reinforced and shaped by a continuous chime or brand 15 of strong and deformable material. Chime 15 initially rhas the cylindrical shape illustrated in FIGURE 2A, with its upper edge rolled to form an inwardly and downwardly open channel to t down over the -upper edge of the cylinder 11. The lip of said channel is crimped inwardly as shown at 15a in FIGURE 2 (and as shown in phantom in FIGURE 2A) to form the bead 15b and 4simultaneously to produce a locking action between the chime 15 yand the upper end of cylinder 13. The lower edge of the chime 15 is also pressed inwardly at 15C both for anchoring of the parts and to produce a flush surface as sho-wn.

The chime 15 is deeply inwardly and somewhat upwardly crimped at 15d to produce the inwardly directed coverengaging seat 13s. The depth of the crimping at 15d is varied to compensate for different wall thicknesses of the cylinder 13 so that covers `of standard dimensions can be used with containers of somewhat varying .Wall thicknesses.

The generally circular cover 17, of deformable sheet metal or other suitable m-aterial, has formed in its periphery a relatively deep annular channel 17e which serves two important functions: first, that of rigidifying the rim of the cover 17 by greatly increasing its vertical dimension, and secondly, that of providing a somewhat resilient inwardly and downwardly tapering face 171 for seating against the inner seat forming surface 13s of the cylinder 13 to produce therewith a relatively tight and reliable seal, as mentioned above.

The outer wall of the trough 17 c extends horizontally at 17h and then upwardly yand outwardly at 17u, the latter two portions being spaced from the underlying and surrounding portion of the upper end of the cylinder 13' and the chime 15 for the purpose of preventing the Wearing away of any sealing medium (such as high viscosity sealing material for a resilient gasket) located in the spaces adjacent the cover portions 17h `and 17u, said spaces being designated at 19, 20 and Z1.

Cover 17 terminates in a downwardly extending generally cylindrical flange 17d, the lower half of which 17d' is slightly inwardly nfset to provide between the parts 17d and 17d a detentlike seat for engaging under the bead 15b von the chime 15 for producing a positive gripping action between the cover 17 and the bead 15b which will prevent displacement of the cover by moderate forces, such as encountered in Iuse and handling of the containers when handled empty or when in non-transporting use. The bottom margin of the flange 17d is outwardly and upwardly rolled or turned at 17 t for further strengthening of the flange and also to provide a seat tangent to the outer face of the upper portion of flange 17d for their simultaneous enga-gement by the inner cylindrical face of a clam-ping channel ring 23, of generally conventional construction and forming per se no part of this invention herein described and claimed. Said channel clamp 23 has an upper inwardly and horizontally directed roll edge flange 23a and a lower flange 23h having a downwardly curved inner edge 23e, which together define the inwardly facing annular channel which when placed over the top of cover portion 17u and -under the upper and horizontal reach of the walls of the chime depression 15d, serve to lock the cover to the container under normally rough shipping conditions. The channel ring 23 is conventionally Y broken at one point in its circumference and is provided with conventional means for pulling the ends together under considerable tension (said means not being shown).

It should be here noted that the mating tapers at 13s` and 17jc function to make the seal more effective when containers of the disclosed -type are tiered.

With reference to FIGURES 3 through 6 of the drawings, the numeral 25 generally designates the continuous bottom chime member of deformable sheet metal or other equivalent material which is employed to connect the bottom member 27 of sheet metal or the like to the bottom edge of the cylinder 13 and to reinforce the bottom member 27. Chime member 2S initially has the shallow cylindrical form best seen in FIGURE 5 with the lower margin thereof inwardly and upwardly turned to define a channel of U-shape in cross section designated at 25C.

The bottom 27 has a downwardly extending shallow cylindrical flange 27f terminating in an outwardly and upwardly facing channel defining portion 27). The channel 27j" receives the lower edge of the cylinder 13 as shown in FIGURE `after which the chime member 25 is slipped upwardly over the outer surface of the bottom portion of cylinder 13 with its inwardly and upwardly turned channel-defining portion C embracing the lower surfaces of the bo-ttom-attached flange 27f and its outwardly and upwardly `curved extension 27j".

FIGURE 6 shows the beginning of the crimping and undulating operations which result in the intertwined interlocking relationships of the parts 13, Z5 and 27 shown in FIGURE 4. In FIGURE 6, the upper end 25u of the chime member 25 is shown as being crimped or pressed into the surface'of the cylinder 13V so as to produce the substantially flush coextension of the two surfaces as shown. Next, the chime element 25 is crimped inwardly at 251 and carries also inwardly the portion of the wall 131' `of the cylinder 13 to form an annular abutment for preventing upward displacement of the bottom 27 of the container 11. Next, the portions Iof parts 25 and 13- lying below the disc portion of the bottom member 27 are bent'inwardly and upwardly about a circular line defining the junction between the bottom 27 and its downturned flange 27j, and in so moving carry with them said flange 27jc and its extension 2,71I into the intermediate fabrication position illustrated in FIGURE 6.

The final crimping operation further presses the bracketedportion ofthe sho-Wing of FIGURE 6 into the rigidifying and bottom anchoring position of the parts shown in FIGURE 4. This operation desirably further adds undulations 25W which like the corrugations in sheet material further strengthen and rigidify the joint while fur-v ther compressing the underlying fibrous material of the cylinder 13 `for, improving the effectiveness of the joint and the seal inherent therein.

While the product herein described is for the purpose of illustration only, it is to be understood that the present invention includes all modifications and equivalents which fall within the scope of the invention which is defined by the appended claims.

What is claimed is:

1. A shipping and storing container comprising a cylindrical member defining the side walls of said container, said cylindrical member being formed of fibrous material of strong but deformable laminated wall construction, a generally circular bottom member of sheet material relatively closely fitted in and across the bottom of said cylindrical member, said bottom member having a downturned marginal ilange terminating in an initially upwardly and outwardly turned relatively short end portion defining a channel for directly embracing the inner and outer lower end surfaces of `said cylindrical member, and a continuous initially cylindrical chime member closely surrounding the lower outer surface of said cylindrical member and having an inwardly and upwardly curved lower extension forming ar U-shaped channel of a size for snugly receiving therein the lower edge of said cylindrical member and said downturned flange of said bottom member during fabrication of said container, said chime member and the adjacent portion of the wall of said cylindrical member being crimped inwardly immediately above said bottom member and also being crimped under said bottom member with the lower portion of said cylindrical member and the ange of said bottom member squeezed at therebetween to anchor said bottom member against upward or downward displacement, said underturned portion of said chime member having at least one additional crimping-formed circumferentially disposed rigidifying and anchoring groove therein.

2. A container Iaccording to claim 1 wherein the upper edge of said chime member is crimped inwardly into the surface of said cylinder whereby to produce a substantially ush coextension of the outer surfaces of said chime member and said cylinder.

3. A container according to claim l and additionally comprising -a second cylindrical chime member of strong and deformable sheet material embracing the upper outer surface of said cylindrical member and having the circumferential medial portion lthereof crimped inwardly along with the adjacent Wall of said cylindrical member to anchor the said portions together against relative displacement and to form an inturned rounded-edge lip, the upper portion of `said second chime member being curved slightly outwardly, then up and o-ver the upper end of said cylindrical member and finally down and pressed somewhat into the inner surface of said upper end to form an annular bead thereon of nearly closed substantially circular cross-section, and a cover member of deformable sheet material having a central disc-like portion and a marginal portion formed with a downturned ange connected to said central portion by a depressed annular portion the outer wall of .which is upwardly and outwardly sloped for tangential wedging sealing engagement with said inturnedy lip, said disc-like por-tion having a relatively deep annular channel providing a substantially resilient inwardly and downwardly tapering face which' produces a downward force component toV draw said cover member into a second sealing engagement with Y the top peripheral surface adjacent the inner seal forming surface of said cylindrical member, said downturned ange having a detent-forming horizontal and circumferential inwardly bent portion for engagement under said annular bead for retaining said cover in place against moderate displacing forces, such `as those encountered in handling of empty containers.

References Cited in the file of this patent UNITED STATES PATENTS 2,129,793 Smith Sept. 13, 1938 2,29(),536 Chamberlain July 2l, 1942 2,727,673 Bergstrom Dec. 20, 1955 2,767,899 Brown Oct. 23, 1956 2,884,176 Carpenter et al Apr. 28, 1959 FOREIGN PATENTS 477,500 Canada Oct. 2, 1951 668,291 Great Britain Mar. l2, 1952 

1. A SHIPPING AND STORING CONTAINER COMPRISING A CYLINDRICAL MEMBER DEFINING THE SIDE WALLS OF SAID CONTAINER, SAID CYLINDRICAL MEMBER BEING FORMED OF FIBROUS MATERIAL OF STRONG BUT DEFORMABLE LAMINATED WALL CONSTRUCTION, A GENERALLY CIRCULAR BOTTOM MEMBER OF SHEET MATERIAL RELATIVELY CLOSELY FITTED IN AND ACROSS THE BOTTOM OF SAID CYLINDRICAL MEMBER, SAID BOTTOM MEMBER HAVING A DOWN TURNED MARGINAL FLANGE TERMINATING IN AN INITIALLY UPWARDLY AND OUTWARDLY TURNED RELATIVELY SHORT END PORTION DEFININ A CHANNEL FOR DIRECTLY EMBRACING THE INNER AND OUTER LOWER END SURFACES OF SAID CYLINDRICAL MEMBER, AND A CONTINUOUS INITIALLY CYLINDRICAL CHIME MEMBER CLOSELY SURROUNDING THE LOWER OUTER SURFACE OF SAID CYLINDRICAL MEMBER AND HAVING AN INWARDLY AND UPWARDLY CURVED LOWER EXTENSION FORMING A U-SHAPED CHANNEL OF A SIZE FOR SNUGLY RECEIVING THEREIN THE LOWER EDGE OF SAID CYLINDRICAL MEMBER AND SAID DOWNTURNED FLANGE OF SAID BOTTOM MEMBER DURING FABRICATION OF SAID CONTAINER, SAID CHIME MEMBER AND THE ADJACENT PORTION OF THE WALL OF SAID CYLINDRICAL MEMBER BEING CRIMPED INWARDLY IMMEDIATELY ABOVE SAID BOTTOM MEMBER AND ALSO BEING CRIMPED UNDER SAID BOTTOM MEMBER WITH THE LOWER PORTION OF SAID CYLINDRICAL MEMBER AND THE FLANGE OF SAID BOTTOM MEMBER SQUEEZED FLAT THEREBETWEEN TO ANCHOR SAID BOTTOM MEMBER AGAINST UPWARD OR DOWNWARD DISPLACEMENT, SAID UNDERTURNED PORTION OF SAID CHIME MEMBER HAVING AT LEAST ONE ADDITIONAL CRIMPING-FORMED CIRCUMFERENTIALLY DISPOSED RIGIDIFYING AND ANCHORING GROOVE THEREIN. 